Quick edit:
The light pixels where there would normally be anti-aliasing within the pink rectangle just come across as stray light pixels, rather than reflected lighting or something (which is what I'm guessing you were going for?).
The edit mainly just changes the shading on the nose to blend it better, without regard for any reflected light.
You might also want to shade under the mustache, but it might not be necessary.
I really like it otherwise though. especially the double thick outlines; I love those.
The light pixels where there would normally be anti-aliasing within the pink rectangle just come across as stray light pixels, rather than reflected lighting or something (which is what I'm guessing you were going for?).
The edit mainly just changes the shading on the nose to blend it better, without regard for any reflected light.
You might also want to shade under the mustache, but it might not be necessary.
I really like it otherwise though. especially the double thick outlines; I love those.